Self-aligned V0-contact for cell size reduction
    3.
    发明申请
    Self-aligned V0-contact for cell size reduction 失效
    自对准V0接触用于电池尺寸减小

    公开(公告)号:US20060151819A1

    公开(公告)日:2006-07-13

    申请号:US11373080

    申请日:2006-03-09

    IPC分类号: H01L29/94

    CPC分类号: H01L21/76897 H01L28/55

    摘要: An FeRAM comprising includes a ferroelectric material sandwiched between a top electrode and a bottom electrode. A V0-contact provides an electrical connection with an underlying CS-contact. The V0-contact is aligned using the bottom electrode. A liner layer covers a sidewall of the bottom electrode and provides a stop to an etch a hole forming the V0-contact. A method is utilized to form a V0-contact in an FeRAM comprising. An Fe capacitor of the FeRAM is encapsulated, a bottom electrode is etched, a liner layer is deposited covering a sidewall of the bottom electrode, and a hole is etched for the V0-contact until the etching is stopped by the liner layer.

    摘要翻译: FeRAM包括夹在顶电极和底电极之间的铁电材料。 V0触点提供与底层CS触点的电气连接。 使用底部电极对齐V0触点。 衬里层覆盖底部电极的侧壁,并为蚀刻形成V0接触的孔提供停止。 在FeRAM中使用一种形成V0接触的方法,包括。 FeRAM的Fe电容器被封装,蚀刻底部电极,沉积覆盖底部电极的侧壁的衬层,并且蚀刻用于V0接触的孔,直到蚀刻被衬垫层停止。

    MULTI-LAYER BARRIER ALLOWING RECOVERY ANNEAL FOR FERROELECTRIC CAPACITORS
    4.
    发明申请
    MULTI-LAYER BARRIER ALLOWING RECOVERY ANNEAL FOR FERROELECTRIC CAPACITORS 有权
    多层障碍物允许用于电容电容器的恢复电极

    公开(公告)号:US20050013091A1

    公开(公告)日:2005-01-20

    申请号:US10623461

    申请日:2003-07-18

    CPC分类号: H01G4/1245 H01G4/33 H01L28/57

    摘要: A multi-layer barrier for a ferroelectric capacitor includes an outdiffusion barrier layer permeable to both hydrogen and oxygen. The outdiffusion barrier layer covers the ferroelectric of the capacitor. Oxygen passes through the outdiffusion barrier layer into the ferroelectric during an oxygen anneal in order to repair damage to the ferroelectric caused during etching. The outdiffusion barrier layer reduces the decomposition of the ferroelectric by blocking molecules leaving the ferroelectric during the oxygen anneal. The multi-layer barrier also includes a hydrogen barrier layer deposited on the outdiffusion barrier layer after repair of the ferroelectric by the oxygen anneal. The hydrogen barrier layer allows the multi-layer barrier to block the passage of hydrogen into the ferroelectric during back-end processes.

    摘要翻译: 用于铁电电容器的多层屏障包括可渗透氢和氧的扩散阻挡层。 外扩散阻挡层覆盖电容器的铁电体。 在氧退火期间,氧气通过外扩散阻挡层进入铁电体,以便修复在蚀刻期间引起的铁电体损坏。 扩散阻挡层通过在氧退火期间阻挡离开铁电体的分子来减少铁电体的分解。 多层屏障还包括通过氧退火修复铁电体之后沉积在扩散阻挡层上的氢阻挡层。 氢阻挡层允许多层屏障在后端工艺期间阻止氢气进入铁电体。

    Self-aligned V0-contact for cell size reduction
    5.
    发明授权
    Self-aligned V0-contact for cell size reduction 失效
    自对准V0接触用于电池尺寸减小

    公开(公告)号:US07378700B2

    公开(公告)日:2008-05-27

    申请号:US11373080

    申请日:2006-03-09

    IPC分类号: H01L29/76

    CPC分类号: H01L21/76897 H01L28/55

    摘要: An FeRAM comprising includes a ferroelectric material sandwiched between a top electrode and a bottom electrode. A V0-contact provides an electrical connection with an underlying CS-contact. The V0-contact is aligned using the bottom electrode. A liner layer covers a sidewall of the bottom electrode and provides a stop to an etch a hole forming the V0-contact. A method is utilized to form a V0-contact in an FeRAM comprising. An Fe capacitor of the FeRAM is encapsulated, a bottom electrode is etched, a liner layer is deposited covering a sidewall of the bottom electrode, and a hole is etched for the V0-contact until the etching is stopped by the liner layer.

    摘要翻译: FeRAM包括夹在顶电极和底电极之间的铁电材料。 V0触点提供与底层CS触点的电气连接。 使用底部电极对齐V0触点。 衬里层覆盖底部电极的侧壁,并为蚀刻形成V0接触的孔提供停止。 在FeRAM中使用一种形成V0接触的方法,包括。 FeRAM的Fe电容器被封装,蚀刻底部电极,沉积覆盖底部电极的侧壁的衬层,并且蚀刻用于V0接触的孔,直到蚀刻被衬垫层停止。

    Side-wall barrier structure and method of fabrication
    6.
    发明授权
    Side-wall barrier structure and method of fabrication 有权
    侧壁屏障结构及其制造方法

    公开(公告)号:US06946735B2

    公开(公告)日:2005-09-20

    申请号:US10307257

    申请日:2002-11-29

    摘要: The invention includes a wafer having a poly silicon plug passing through a CP-contact. The poly silicon plug is formed from a relatively heavily doped poly silicon layer and a relatively lightly doped poly silicon layer. The relatively lightly doped poly silicon layer passes through the relatively heavily doped poly silicon layer to extend beyond the relatively heavily doped poly silicon layer towards the surface of the wafer. A barrier layer covers top and side walls of the relatively lightly doped poly silicon layer for reducing oxidation at the surface of the poly silicon plug. The wafer is fabricated by depositing a relatively heavily doped poly silicon layer in a CP-contact, depositing a relatively lightly doped poly silicon layer to pass through the relatively heavily doped poly silicon layer, and depositing a barrier layer to cover top and side walls of the relatively lightly doped poly silicon layer to reduce oxidation at the surface of the poly silicon plug.

    摘要翻译: 本发明包括具有通过CP接触的多硅插头的晶片。 多晶硅插头由相对高掺杂的多晶硅层和相对轻掺杂的多晶硅层形成。 相对轻掺杂的多晶硅层通过相对重掺杂的多晶硅层延伸超过相对重掺杂的多晶硅层朝向晶片的表面。 阻挡层覆盖相对较轻掺杂的多晶硅层的顶壁和侧壁,用于减少多晶硅插头表面的氧化。 通过在CP接触中沉积相对重掺杂的多晶硅层来制造晶片,沉积相对轻掺杂的多晶硅层以通过相对重掺杂的多晶硅层,以及沉积阻挡层以覆盖顶部和侧壁 相对轻掺杂的多晶硅层,以减少在多晶硅塞的表面处的氧化。

    Self-aligned Vo-contact for cell size reduction
    7.
    发明申请
    Self-aligned Vo-contact for cell size reduction 失效
    自对准Vo接触,以减小电池尺寸

    公开(公告)号:US20050082583A1

    公开(公告)日:2005-04-21

    申请号:US10677852

    申请日:2003-10-01

    IPC分类号: H01L21/02 H01L21/60 H01L29/76

    CPC分类号: H01L21/76897 H01L28/55

    摘要: An FeRAM comprising includes a ferroelectric material sandwiched between a top electrode and a bottom electrode. A V0-contact provides an electrical connection with an underlying CS-contact. The V0-contact is aligned using the bottom electrode. A liner layer covers a sidewall of the bottom electrode and provides a stop to an etch a hole forming the V0-contact. A method is utilized to form a V0-contact in an FeRAM comprising. An Fe capacitor of the FeRAM is encapsulated, a bottom electrode is etched, a liner layer is deposited covering a sidewall of the bottom electrode, and a hole is etched for the VO-contact until the etching is stopped by the liner layer.

    摘要翻译: FeRAM包括夹在顶电极和底电极之间的铁电材料。 V0触点提供与底层CS触点的电气连接。 使用底部电极对齐V0触点。 衬里层覆盖底部电极的侧壁,并为蚀刻形成V0接触的孔提供停止。 在FeRAM中使用一种形成V0接触的方法,包括。 FeRAM的Fe电容器被封装,蚀刻底部电极,沉积覆盖底部电极的侧壁的衬垫层,并且蚀刻用于VO触点的孔,直到蚀刻被衬垫层停止。

    Self-aligned V0-contact for cell size reduction
    8.
    发明授权
    Self-aligned V0-contact for cell size reduction 失效
    自对准V0接触用于电池尺寸减小

    公开(公告)号:US07061035B2

    公开(公告)日:2006-06-13

    申请号:US10677852

    申请日:2003-10-01

    IPC分类号: H01L29/94

    CPC分类号: H01L21/76897 H01L28/55

    摘要: An FeRAM comprising includes a ferroelectric material sandwiched between a top electrode and a bottom electrode. A V0-contact provides an electrical connection with an underlying CS-contact. The V0-contact is aligned using the bottom electrode. A liner layer covers a sidewall of the bottom electrode and provides a stop to an etch a hole forming the V0-contact. A method is utilized to form a V0-contact in an FeRAM comprising. An Fe capacitor of the FeRAM is encapsulated, a bottom electrode is etched, a liner layer is deposited covering a sidewall of the bottom electrode, and a hole is etched for the VO-contact until the etching is stopped by the liner layer.

    摘要翻译: FeRAM包括夹在顶电极和底电极之间的铁电材料。 V0触点提供与底层CS触点的电气连接。 使用底部电极对齐V0触点。 衬里层覆盖底部电极的侧壁,并为蚀刻形成V0接触的孔提供停止。 在FeRAM中使用一种形成V0接触的方法,包括。 FeRAM的Fe电容器被封装,蚀刻底部电极,沉积覆盖底部电极的侧壁的衬垫层,并且蚀刻用于VO触点的孔,直到蚀刻被衬垫层停止。

    Multi-layer barrier allowing recovery anneal for ferroelectric capacitors
    9.
    发明授权
    Multi-layer barrier allowing recovery anneal for ferroelectric capacitors 有权
    用于铁电电容器的多层屏障允许恢复退火

    公开(公告)号:US06839220B1

    公开(公告)日:2005-01-04

    申请号:US10623461

    申请日:2003-07-18

    CPC分类号: H01G4/1245 H01G4/33 H01L28/57

    摘要: A multi-layer barrier for a ferroelectric capacitor includes an outdiffusion barrier layer permeable to both hydrogen and oxygen. The outdiffusion barrier layer covers the ferroelectric of the capacitor. Oxygen passes through the outdiffusion barrier layer into the ferroelectric during an oxygen anneal in order to repair damage to the ferroelectric caused during etching. The outdiffusion barrier layer reduces the decomposition of the ferroelectric by blocking molecules leaving the ferroelectric during the oxygen anneal. The multi-layer barrier also includes a hydrogen barrier layer deposited on the outdiffusion barrier layer after repair of the ferroelectric by the oxygen anneal. The hydrogen barrier layer allows the multi-layer barrier to block the passage of hydrogen into the ferroelectric during back-end processes.

    摘要翻译: 用于铁电电容器的多层屏障包括可渗透氢和氧的扩散阻挡层。 外扩散阻挡层覆盖电容器的铁电体。 在氧退火期间,氧气通过外扩散阻挡层进入铁电体,以便修复在蚀刻期间引起的铁电体损坏。 扩散阻挡层通过在氧退火期间阻挡离开铁电体的分子来减少铁电体的分解。 多层屏障还包括通过氧退火修复铁电体之后沉积在扩散阻挡层上的氢阻挡层。 氢阻挡层允许多层屏障在后端工艺期间阻止氢气进入铁电体。

    Process for fabrication of a ferroelectric capacitor
    10.
    发明授权
    Process for fabrication of a ferroelectric capacitor 失效
    铁电电容器制造工艺

    公开(公告)号:US07199002B2

    公开(公告)日:2007-04-03

    申请号:US10651614

    申请日:2003-08-29

    IPC分类号: H01L27/108

    摘要: A process for the fabrication of a ferroelectric capacitor comprising depositing a layer of Ti 5 over an insulating layer 3 of Al2O3, and oxidising the Ti layer to form a TiO2 layer 7. Subsequently, a layer of PZT 9 is formed over the TiO2 layer 7. The PZT layer 9 is subjected to an annealing step in which, due to the presence of the TiO2 layer 7 it crystallises to form a layer 11 with a high degree of (111)-texture.

    摘要翻译: 一种用于制造铁电电容器的方法,包括在Al 2 O 3 3的绝缘层3上沉积Ti 5层,并氧化Ti层以形成TiO 然后,在TiO 2层7上形成PZT 9层.PZT层9经历退火步骤,其中由于 TiO 2层7的存在使其结晶形成具有高度(111) - 纹理的层11。